This is a brand new Acer premium grade replacement battery. The superior South Korean cells inside the battery cartridge will provide longer run times between charges as well as a longer service life than cheaper batteries.

This is a 14 Volt battery if you have a 11 volt battery please 11 volt Acer battery. In addition, Li-ion batteries are not subject to the memory effect common with older battery technology. This means you can recharge your laptop any time without diminishing your battery capacity. This laptop battery replacement is typically superior to the original battery and is 100% compatible with your Acer notebook computer. The battery is individually tested before shipment and backed by 30 day complete satisfaction guarantee and a 2 Year warranty.

You can expect about 2 hours to 2-1/2 hours of run time with this computer battery when new, depending on your energy use.

This battery replaces the Acer Extensa 5120, 5210, 5220, 5420, 5430, 5610, 5620, 7120, 7420 & TravelMate 5220, 5310, 5320, 5520, 5710, 5720, 7220, 7520 series laptop batteries and additional machines which are listed at the extreme bottom of this web page.